Sewing-machine.



0. s. SEYMOUR.

SEWING MACHINE.

APPLICATION FILED 061227. 1906.

4 SHEETS-SHEET I.

Patented May 4, 1915.

D. S. SEYMOUR.

' SEWING MACHINE.

APPLICATION FILED 0cT.21. 90s.

4 SHEETS-SHEET 2.

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SEWING MACHINE.

APPLICATION FILED OCT.2T| 1906. v

Patented May 4,1915.

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SEWING MACHINE. APPuqATloN FILED OCTLZL- I906.

Patented May 4 4 SHEETS-SHEET 4.

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DUDLEY S. SEYMOUR, 0F OAK PARK, ILLINOIS, ASSIGNOR TO UNION SRECIAL MACHINE COMPANY, OF CHICAGO, ILLINGIS, ACQRPORATION OF ILLINOIS.

SEWING-MACHINE.

answer.

Specification of Letters Patent.

PatentedMay 4, 19115.

Application filed. October 27, 1906. Serial No. 340,908.

To all whom it may concern:

Be it known that I, DUDLEY S. SEYMOUR, a citizen of the United States, residing at Oak Park, in the county of Cook, State of Illinois, have invented certain new and useful Improvements in Sewing-Machines, of which the following is a description, reference being had to the accompanying drawing and to the letters and figures of reference marked thereon.

My invention relates to improvements in sewing machines, and more particularly to the construction of the casing and other parts, which support, surround and inclose the operating mechanism of the machine.

An object of my invention is to inclose as far as possible the entire operating mechanism of the machine.

A further object of my invention is to construct the bed plate casing so that while the operating mechanism is inclosed, access thereto may be readily had.

A further object of my invention is to improve the work plate structure whereby the looper mechanism and feeding mechanism is substantially inclosed.

These and other objects of the invention will in part be obvious, and in part be more fully explained hereinafter.

My invention consists in the novel parts, improvements and arrangements herein shown and described.

In the accompanying drawings, Figure 1 is a front side elevation of a sewing machine embodying my invention; Fig.2 is a top plan view of the same, showing in dotted lines a portion of the work plate as moved from its normal postion to expose the looper mechanism; Fig. 3 is a front elevation of a machine embodyingv my invention, with the work plate removed and the" front of the casing removed to show the relation of the operating parts to said casing; Fig. 4 is a detail perspeceive view of my improved work plate; Fig. 5 is a detail perspective view on a smaller scale of the detachable portion of the casing; Fig. 6 is a vertical sectional view of the rear portion of the standard of the machine, taken throu h the bearing for the driving shaft; Fig. is a vertical sectional view of the rear portion of the standard, taken throughthe bearing for the needle lever; Fig. 8.:is a vertical section of the bed plate and work suppora taken substantially on the line of feed, the looperoverhanging arm, as shown in the drawing,

comprises a main supporting section and a detachable cover 25. Said cover 25 is secured to the main portion of the casing by means of a stud 28 and a slotted sleeve 26. Said sleeve 26 has a slot 27 running longitudinally of said sleeve and a cross slot 42 at the bottom end of said slot 27 which extends at right angles thereto. Cooperating with the sleeve 26 is the pin 28, which is mounted in a boss carried by the cover 25,

and provided with a thumb nut 30, whereby said pin may be turned about its axis. Said pin 28 is provided with a stud 29. In order to place the cover upon the machine, the pin 28 is turned so that the stud 29. registers with the slot 27 in the sleeve, and the pin is then inserted into said sleeve. The stud 29 reaches the bottom of the groove 27 when the cover is in place, and by turning the pin 28, said stud is moved into the cross slot. 42, and the cover firmly locked in place.

The needle bar 5 receives its reciprocation from a needle lever 9, which is connected to the needle bar 5, by means of a link 10. The needle lever 9 is secured to a stud 11 by means of a set screw 43. The main por tion of the casing is provided with an enlarged extending boss 44, which is bored out for the reception "of the bearing 45, which receives the stud 11 of the needle lever; Said bearing 45 is retained in the boss 44, by means of a' screw 46, which is tapped into the boss and has its head extending over the hearing as clearly shown in Fig. 7. The stud 11 at its rear end is threaded, and is held in the bearing 45 by means of a threaded nut 46, and a set nut 47. In order that the stud for the needle lever may beconveniently oiled, I have provided oil duct 48, as shown in Fig. 6, leading through. the casing andbearing 45 to the stud. By providing the main casing with a boss and supporting the needle lever entirely from said main casing, I am enabled to readily remove the cover without disturbing the supporting bearing for the needle lever. The needle lever 9 receives its reciprocation from a link 15, which is pivotally connected to the needle lever by means of a pivot bolt 16 at one end, and at its other end engages an eccentric on the main shaft '7.

In order to form a proper support for the driving shaft'7, I have provided the main portion of my casing with an enlarged boss 49, which extends longitudinally of the easing and intothe same, as clearlyshown in Fig. 6. Said boss is bored out, and provided with a bearing 50 for the shaft. I have also provided the boss, which supports the main shaft, with a recess 51, which extends longitudinally of the shaft and is ar ranged slightly above the same, as clearly shown in Figs. 6 and 7. The lower side of said recess 51 is slotted, as at 52, and the bearing 50 is also provided with a slot registering with the slot 52. I have also pro vided the casing with two oil ducts 53 and 54, which lead through the casing and communicate with the outer ends of the recess 51. Said recess 51 is provided with a sponge packing, which is retained in the recessby a cap screw 55. The object of this recess and sponge packing is to provide a storage reservoir for the oil, for the main bearing.

This packing retains the oil and graduallyfeeds the same to the main bearing. The outer end of the boss 49 is bored out for the reception of a hub 56, formed integral with the inner side of the belt wheel 8. By setting the hub 56 .of the belt wheel within this opening in the casing, the oil which accumulates at the juncture of the belt wheel '2 and driving shaft and is often thrown from the shaft, is retained within the recess, and thus the machine is prevented from throwing oil, which often occurs at this point in the structure. The needle lever 9 is provided with the usual needle lever extension 12, whichcarries at its lower end a thread-guide 38, for the looper thread. The cover of my machine is provided with a slot 39 curved-on an are having the pivot of the needle lever as an axis. The thread guide 38 extends through said slot, so that the looper thread running from the tension of 32 at the topof the machine, passes down over the casing and through said thread guide 38. The cover" fli's' also provided with depressed groove 40, through which the looper thread is led on its, way to the thread controller. The looper 13 is .pivotally supported upon a looper carrier 17, which receives its lateral movement from an arm 57, connected to an eccentric strap 58, which in turn is operated by an eccentric. on the main shaft. The looper 13 receives its oscillation on the carrier 17, through the link 14, which is pivoted to the need-1e leverextension 12.

The cover for my machine is provided with a slot 59, through which the link 14 extends and operates. looper and the thread guide 38 is a thread controller 41, for the looper thread.- Gooperating with the thread controller 41 are the thread guides 59 and 60, which are carried by a block 19, secured to the bed plate of the machine. In order that the thread controlling cam 41 may be sufliciently large in diameter to properly control the looper thread, I have cut away the bed plate as at 61, forming a recess within which the thread camrotates.

Rising from the bed plate 1 at the f0r ward end is a bracket 18, which serves as a Intermediate the tion 62 for the reception of the thread-controlling cam 41. Said work plate 20 is also provided with a depending apron 22, which extends entirely around the operating parts beneath the work plate. This apron 22 extends down substantially to the bed plate, and serves to substantially inclose all the operating parts. In order that the looper may be easily rendered accessible for the purpose of threading, I have provided the workplate and depending apron, with removable sections 23 and 2-4. The section 23 is. pivotally connected to the section 22 of the apron by means of a vertical pivot, as shown in Fig. 4, and this section 23 of the "work plate. When access is desired to the looper all that is necessary is to turn the removable section outward, and this may be accomplishedwithout removing the cover for the casing; I -have also provided the forward portion =of the bed plate with an opening 63,.which, as shown in Fig. 8, registers with an opening in the work bench on which-the machine rests, so that portions of I thread-which accumulate within the casing may be readily brushed through the opening 63, and the opening in the bed plate. The feedjdog' 64. of my mac iine is supported upon the usual feed. b r 65. Said apron serves to support the section 24 of the.

feed bar- 65 receives its up and down movee ment from the cam 66, carried by the main istru'ction and further description thereof will not be necessary'.-- 1

The bed plate 1 is provided-with an upwardly extending flange 68, whichextends meme? I apron 22 of the work support extends downward to a point below the upper edge of the flange 68, as clearly shown in Fig. 8, maltsubstantially a pocket in which the rocking frame operates, and also serving as a double protection for the operating parts ofthe machine, as the dust and lint which may creep under the apron 22 would be stopped by the flange 68. I have also provided my feeding mechanism with a dirt protector 69, which as shown in the drawing, is attached to the feed bar and extends forward over the operating parts arranged be neath the feed dog.

The presser foot is of the usual construction, and is carried by the presser bar 71. This presser bar is held yieldingly against the work support by means of a spring 72. The, main portion of the casing is provided with an inwardly extending lug 73, which serves as a supporting means for the spring 72, the screw 74 holding the spring 72 on its seat on the lug 73. The screw passing through the upper portion of the casing engages the spring 72 intermediate the support 73 and the presser bar, and by adjusting the screw 75 the tension on the spring may be changed.

The needle head 4 of my machine is provided with a face place 76, which is secured thereto in the usual manner by screws 77, '77. The upper portion of the face plate 76 is cut away, as clearly shown in Fig. 10 of the drawing. Pivotally connected to the head of the machine and in the cut away portion of the face plate, is my presser foot lifting lever 78, said lever being secured to the head by means of a pivot screw 79. The presser lifting lever is provided with the usual cam portion 80, which engages a stud 81, carried by the presser bar.

When it is desired to lift the presser bar,

the presser lever 7 8 is turned to the position shown in dotted lines in Fig. 10, and the. cam 80 engaging the stud on the presser bar raises the same. When it is desired to I lower the presser bar, the presser lever is turned from the position lshown in dotted lines, and the downward movement of the presser bar caused by the spring 72 causes the presser lever 78 to drop. 'By pivoting my presser lever on the head of the machine and in the same vertical plane with the face plate, the upper edge 82 of said face plate serves as a stop for the presser lever 78.

I have found that in the usual construction, where a lug is formed to receive the pressed lever on its downward movement, that said lugs are constantly being broken from the machine, while with my improved arrangement, wherein the upper edge of the face plate receives the blow from the presser lever, all danger of breaking is avoided.

Mounted on the upper and rear end of the main casing is a bracket, which supports the tension 31 for the needle thread. Adjacent to said tension 31 is a thread guide 36, overwhich the needle thread is led on its way to the thread guide carried at the upper end of the needle bar. Rigidly secured to the needle lever by means of screw 34 is a thread arm 33, carrying a thread finger 35, which engages the thread be tween the tension 31 and the thread guide 36, and operates to control the needle thread in the formation of the stitch. v

It will-be noted from the above description, that I have provided a casing and a work support, which practically surrounds all the operating mechanism of my machine, so that the same is kept free from dirt, dust and lint. It-will also be noted that when access is desired to any of these parts, that the cover 25 may be readily removed without disturbing any of the operative connections, all that is required being the unthreading of the looper, this being accomplished by forming the supports for the' operating parts upon the main section of the casing.

It will be obvious that minor changes in the form of construction and the details above set forth, may be made without de parting from the spirit of my invention.

Having thus described my invention,'what I claim as new and desire to secure by Letters Patent is 1. A sewing machine comprising in combination stitch forming mechanism, including a needle, a needle lever means for operating the same, and a casing within which I said operating means is located, said casing having a portion thereof removable whereby access may be had to said operating means, a boss formed on "the fixed portion of said casing and supporting said needle lever; substantially as described.

2. A sewing machine comprising in combination stitch forming mechanism, a needle, a needle lever means for operating the same, and a casing within which said operating means is located, said casing being formed with an overhanging arm and a needle head and having a portion extending the length of the overhanging arm to the needle head removable whereby access may be had to 7 said operating means, a boss formed on the fixed portion ofsaid casing and supporting said needle lever; substantially as described.

3. A sewing machine comprising in combination stitch forming mechanism, including a needle, a needle lever means for operating the same, and a casing within which said operating means is located, said casing comprising a standard and an overhanging arm having a needle head, a portion of said casing extending the length of said standard and overhanging arm being removable 'whereby access may be had to said operating means, a boss formed on the fixed portion of said casing and supporting said needle lever substantially as described.

4. A sewing machine comprising in combination stitch forming mechanism including a needle, means for operating the same, and a casing within which said operating means is located, said casing having a portion thereof removable whereby access may be had to said operating means, a sleeve carried by one of the parts of the casing and means carried by the other part and cooperating with said sleeve to hold said parts together; substantially as described.

5. A sewing machine comprising in combination stitch forming mechanism including a needle, means for operating the same, and a casing within which said operating means is located, said casing having a portion thereof removable whereby access may I be had to said operating means, a sleeve having a slot therein carried by one of said parts and a locking pin carried by the other part and having a lug cooperating-with said sleeve and slot to hold said parts together; substantially as described.

.6. A sewing machine comprising in combination stitch forming mechanism, comprising a needle, means for operating the same, and a casing within which said operating means is located, said casing being formed with an overhanging arm and a needle head and having a portion extending the length of the overhanging arm to the needle head removable whereby access may be had to said operating means, a sleeve carried by one of the parts of the casing and means carried by the other part coeperating with said sleeve to hold said parts together; substantially as described 7. A sewing machine comprising in combination stitch forming mechanism including a needle, means for operating the same, and a casing within which said operating means is located, a needle head carried by the casing, a portion of said casing extending the length of said standard and overhanging arm being removable whereby access may be had to said operating means, a sleeve carried by one of the parts of the easing and a locking pin carried by the other part and cooperating with said sleeve to hold said parts together; substantially as described. p 8. A sewing machine comprising in combination stitch forming mechanism including a needle, means for operating the same,

and a casing within which said operating.

means is located, said casing comprising a standard and an overhanglng arm havmg a needle head, a portion of said casing exv tending the length .of said standard and overhanging arm being removable whereby 1 access may be had to said operating means, a

" sleeve carried by one of the parts of the casing and having a slot, a locking pin having a lug carried by the other part and cooperating with said sleeve and slot to hold said parts together; substantially as described.

9. A sewing machine comprising in combination, a casing within whichthe operating parts are located, said casing being formed of a main portion and a detachable cover therefor, one of said parts being provided with a. sleeve having a longitudinal slot therein and a cross slot leading from said longitudinal slot and the other of said parts being provided with a pin having a stud cooperating with the slots in said sleeve; substantially as described.

10. A sewing machine comprising in comblnation, a casing, within which the operating parts are located; said casing being formed of a main portion and a removable cover, of a slotted sleeve formed integral with said main portion and havinga longitudinal slot and a cross slot, and a pin rotatably carried by said cover, a thumb nut for "said pin, and a stud carried'by said pin and coiiperating with the slots in said sleeve; substantially as described.

11. A sewing machine including in com-.

stud of said needle lever; substantially as described.

13. A sewing machine, including in combination, a needle, a needle bar, a needle lever a fulcrum stud therefor, a supporting casmg, and an extended boss projecting from the rear of said casing and having a bearing for the fulcrum stud of said needle lever; substantially as described,

14-. A sewing machine comprislng in combination, stitch-forming mechanism, feeding mechanism comprising a rocking frame,

a bed plate on which Said parts are supported, a work'plate, a depending apron carried by said work plate and an upwardly extending flange carried by the said bed plate and extending up in front'of the rocking frame of the feeding mechanism; substantially as described.

15. A sewing machine comprising in combination, stitch-forming mechanism, feedin mechanism comprising a rocking frame, a bedplate on which said parts are supported, a. work plate, a-depending apron carried by said work plate, and an upwardly extending flange carried by the said bed plate meme? 5 the forward end of said needle headand having a cut awayv portion at its upper end, a presser-llfting lever mounted on the I needle head and in the same plane with the face plate, whereby the upper edge of said face plate serves as a stop for the presser lever; substantially as described.

17. A sewing machine comprising in combination stitch forming mechanism, including an operating shaft, a support for said shaft, said support having an opening therethrough through which said shaft extends, said support having a cylindrical recess formed therein adjacent the opening for the shaft, the longitudinal axis of said recess being parallel with the axis of the shaft, said support having a slot extending from said recess to the opening for the shaft, said slot extending substantially from end to end of said recess, and a cap for closing the recess for holding an oil retaining packing therein, said support having oil ports leading to said recess whereby oil may be supplied thereto.

18. A sewing machine including in combination, a stitch-forming mechanism comprising a main shaft, a supporting casing for said stitch-forming mechanism, a boss carried by said casing and having a bearing for said mainshaft, a recess formed in said boss and extending longitudinally of said main shaft, oil ducts leading to the ends of said recess, said boss having a slot for connecting the bearing for said main shaft with said recess, and a screw cap for closing the outer endof said recess; substantially as described.

19. A sewing machine including in combination, a needle bar, a needle lever for operating the same, a looper, a link for connecting said looper to said needle lever, a'

casing surroundlng the needle lever and having a slot therein, a thread guide carried by said needle lever for the looper thread and projecting through the slot. in said casing, said casing having a thread groove for the looper thread, leading substantially from said slot to the front of said casing; substantially as described.

20. A sewing machine including in combination, a needle bar, a needle lever for operating the same, a looper and a link for connecting said looper to said needle lever, of a casing surrounding said needle lever and havinga slot through which the link for operating the looper passes; substantially as described.

21. A sewing machine including in combination, a needle, a needle lever for operating said needle, a looper, and means for operating said looper from said needle lever, a casing surrounding said needle lever, a thread guide carried by said needle lever and projecting through a slot in said casing, said casing having a depressed groove through which the thread passes from the thread guide on the needle lever to the looper; substantially as described.

In testimony whereof I affix my signature, in presence of two witnesses.

DUDLEY S. SEYMOUR.

Witnesses: I

CHESTER MoNEIL, A. B. CLOTHIER. 

